AK8452 Datasheet, PDF (9/46 Pages) Asahi Kasei Microsystems – 2 channel-input 16 bit 10MSPS ADC

ASAHI KASEI
AKM Confidential
[AK8452]
(Note 3) Monotonicity guaranteed.
(Note 4) ±50 mV of the total correctable range is used for internal offset adjustment.
(Note 5) It defines that a boundary point of ADC output codes between 0000h and 0001h exists
within ±50mV range of the offset adjustment DAC setting when 1.1V is fed on CISIN &
VCLP pins in DC Direct Coupled mode, and when PGA gain is set to 0dB.
(Note 6) Relative value to the gain at PGA setting is 00h.
(Note 7) A full-scale minus 2 dB, 1 MHz sine-wave signal is input. (@2ch mode, 4bit bus）
(Note 8) A clock supply to MCLK is stopped.
(Note 9) At the capacitive load is 20pF.
(Note 10) Condition: Input signal frequency : 1MHz, Noise frequency : 0.1MHz, Signal : Noise =
10:1.No shipping inspection.
(Note 11) AFE2ch. /single edge/4bit output mode
(Note 12) Target channel PGA gain at max, the other channel PGA gain at minimum values.
Then measure how much the output code of the target channel to be measured
fluctuates when input to the measured channel is fixed and a full-scale minus 1 dB step
signal is input on all other channels.
„ LEDD block, Analog characteristics
(AVDD=3.3V, LVDD=5.5, MCLK=40MHz, Single Edge Mode, Ta=25°C,
Item
LED drive current range
The LED protection circuit
activation current
LED current (Including
resistance accuracy)
(RED)
Min.
20
105
53
LED current
Red
Green
95
Blue
95
LED current accuracy
(GREEN,BLUE)
94.8
90.7
86.5
82.3
78.2
74.0
69.8
LED current LED pin -2.5
voltage dependence
LVDD power consumption
Typ.
150
60
100
100
95.8
91.7
87.5
83.3
79.2
75.0
70.8
0.6
Max.
60
195
Unit
mA
mA
unless otherwise specified)
Remarks
67
105
105
96.8
92.7
88.5
84.3
80.2
76.0
71.8
2.5
1.5
mA Å There is possibility to adjust
the typical value after ES
evaluation. It adjusts together
with the Min./Max. value.
IREF resister =4.7k±1%
LED pin voltage =2.0V(Note 1)
IREF resister =4.7k±1%
% LED pin voltage =2.0V
% Relative value
%
LED pin voltage =0.5V
% 000
% 001
% 010
% 011
% 100
% 101
% 110
% 111
% LED pin voltage =2.0V
reference
mA Except LED drive current
MS0955-E-00
9
2008/03